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Printable Handouts
Navigable Slide Index
- Introduction
- Guinea worm - essentials
- Key issues
- Eradication as a definition
- An emerging guinea worm (1)
- An emerging guinea worm (2)
- The intermediate host
- First international task force for disease eradication
- Guinea worm current status - a highly successful programme
- Annual number of reported dracunculiasis human cases, worldwide, 1989-2019
- Guinea worm 2019 summary
- Villages that reported human cases of dracunculiasis, 2019
- Village that reported infected dogs, 2019
- 16 formerly endemic countries certified free of transmission since programme inception
- The certification process
- Criteria for certification
- Guinea worm eradication - essential interventions and components
- Typical unsafe sources
- Typical unsafe sources - filtering water (1)
- Typical unsafe sources - filtering water (2)
- Typical unsafe sources - filtering water (3)
- Unsafe water source
- Access to safe water (1)
- Access to safe water (2)
- Innovative approaches
- Promoting guinea worm programme in the market
- Promoting guinea worm programme at school
- Promoting guinea worm programme using stamps
- Promoting guinea worm programme using posters and rewards
- Health education article and posters
- Villages reporting human dracunculiasis cases 2015-2017
- Chad: expanded surveillance, reported dog infection, 2012-2018
- Map of Chad - Chari river, dog focus
- Dogs in Chad
- Control of dog worms
- Guinea worm epidemiology in Chad
- Peculiar epidemiology in Chad
- Control: immersion
- Removing worm from a dog in Chad
- History of dog infections in Chad
- Mali eradication programme
- South Sudan
- South Sudan - human cases
- Mali
- Measuring and documenting surveillance and response
- Quarterly reporting in post certified countries, 2017
- Survey for guinea worm disease among dogs in formerly endemic countries
- Cash reward for voluntary reporting (1)
- Cash reward for voluntary reporting in endemic and precertification countries
- Reinforcing cash reward for voluntary reporting in post certified countries
- Cash reward for voluntary reporting (2)
- A relationship with other health programmes
- Health worker in Burkina Faso
- Investigating rumours
- A case containment facility
- Villages that reported cases in endemic countries and Angola, 2016-2018
- Angola (1)
- Angola (2)
- The final challenges: the up-hill battle of the last mile
- Acknowledgements
Topics Covered
- Guinea worm essentials
- The certification process
- Guinea worm eradication essential interventions and components
- Unsafe water source
- Innovative approaches including reward
- Animal infection
- Epidemiology in Chad
- Mali
- Measuring and documenting surveillance and response
Links
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Talk Citation
Molyneux, CMG, D. (2020, June 30). Guinea worm: a case study of an eradication programme [Video file]. In The Biomedical & Life Sciences Collection, Henry Stewart Talks. Retrieved December 6, 2024, from https://doi.org/10.69645/NKNM4182.Export Citation (RIS)
Publication History
Financial Disclosures
- Professor Molyneux’s research has been supported by the UK Department for International Development, the World Health Organization, the Bill and Melinda Gates Foundation, GlaxoSmithKline, Sanofi, and Sightsavers International who have provided support for work on Neglected Tropical Disease at the Liverpool School of Tropical Medicine. He also receives Honoraria from The Royal Society of Tropical Medicine and Hygiene, and Sightsavers.
HSTalks is pleased to grant unrestricted complimentary access to all lectures in the series Neglected Tropical Diseases. Persons not at a subscribing institution should sign up for a personal account.
Other Talks in the Series: Neglected Tropical Diseases
Transcript
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0:00
My name is Professor David Molyneux.
I'm an emeritus professor in the Liverpool School of Tropical Medicine.
I'm going to talk to you about Guinea worm,
as a case study of an eradication programme.
I've been involved with Guinea worm for some 20 plus years as a member of
the International Commission for the Certification of the Eradication of Dracunculiasis,
which is an independent group of experts who provide
advice to the World Health Organisation on the status of
the certification programme in countries which are seeking to
eliminate the disease and eventually certify its eradication from the planet.
0:41
I want to start by giving you some essentials of Guinea worm.
It's a filarial nematode.
It's scientific name is Dracunculus medinensis,
and it's transmitted to humans by the ingestion of
water fleas of the genera Cyclops and Mesocyclops.
The adult worms emerge from ulcers after approximately 12-14 months,
after an ingestion of an infected Cyclops.
It is the female worms that emerge from the body,
usually emerging from the lower limbs,
but also capable of emerging elsewhere,
from the hands or even the breasts of individuals who are infected.
In some cases, more than one worm can emerge over the period
of 12-14 months after the infected water fleas had been ingested.
The release of the millions of larvae,
which the female worms produce,
comes from the erosion of the skin into an ulcerating blister,
which is exceedingly painful to the individual,
committing them to try and alleviate the pain and the burning sensation,
by putting their limbs in water,
hence the Cyclops become infected with these larvae.